Tecnologías agroambientales precursoras de materia orgánica del suelo en cultivos industriales del Valle del Cauca (Colombia)

Reyes, Óscar Eduardo Sanclemente; Orozco, Miltón César Ararat; Rendón, Julio César Montoya; Arboleda, Mauricio García

doi:10.22490/9789586518048.05

Cited by 2 publications

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“…11.7% (57) of the soils presented levels higher than 4% OM. Soils with OM contents greater than 2% in the study area have good conditions in the edaphic medium with respect to aggregate stability, porosity, aeration, infiltration, moisture storage, consistency, and nutrient supply (Sanclemente et al 2021). The CEC presented a mean higher than 24 cmol(+).kg -1 and was high (> 20 cmol(+).kg -1 ) (ICA 1992) although an appropriate value for fertility in agricultural soils is between 15 and 25 cmol(+).kg -1 (López and Estrada 2015).…”

Section: Resultsmentioning

confidence: 99%

“…In practical terms, the variables in the first component were reduced to compaction processes, with displacement of water and air from the porous space from the plastic distortion of the soil (González et al 2008). The second component maintained a fundamental relationship with soil fertility, especially for the availability of nutrients, highlighting the buffering or pH-regulating effect of excessive changes in OM (Garro 2016; Sanclemente et al 2021). A significant reduction in pH increases the solubility of metallic elements, with possible changes in the microbial population (Torrente 2017).…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of physicochemical properties in agricultural soils from Valle del Cauca-Colombia with an emphasis on degradation

Marín-Pimentel

Saa

Flores

2022

Preprint

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This research created a baseline for physicochemical properties in agricultural soils from the plains and piedmont of Valle del Cauca. The degradation level of different soils (n = 489) was studied by determining and analyzing their properties. Variability and distribution analysis, central tendency, dispersion and multivariate analysis were included. The results showed that the saturated hydraulic conductivity (Ks) and electrical conductivity (EC) were highly variable. The other properties were moderately variable, depending on the coefficient of variation (10%<CV < 100%). The principal component analysis indicated that the first component was related to compaction processes in the soil (34%), the second included nutrients available to plants (24%), and the third (13%) was the movement of cations. The more susceptible to degradation properties included apparent density (Da) and porosity (η), which had normal distribution (P > 0.150). 19% of the evaluated sites had possible soil compaction, with high Da values (> 1.6 g.cm− 3) and low η (< 40%). The degradation from salinity was minimal, and only 2.2% of the samples had EC values greater than 2 dS.m− 1. 50% of the soils had organic matter levels (MO) greater than 2%. 85.5% had cation exchange capacity values (CEC) that exceeded 15 cmol (+). Kg− 1, and 42.12% were in the pH range from 5.5 to 7.0, optimal conditions for crops.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of physicochemical properties in agricultural soils from Valle del Cauca-Colombia with an emphasis on degradation

Marín-Pimentel

Saa

Flores

2022

Preprint

View full text Add to dashboard Cite

show abstract

Evaluation of physicochemical properties in agricultural soils on the flat and piedmont areas of Valle del Cauca, Colombia with emphasis on degradation

2023

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A study for the physicochemical properties was carried out in agricultural soils (n = 489) on the flat and piedmont areas of Valle del Cauca. The degradation level of different soils (n = 489) was studied by determining and analyzing their properties. Variability and distribution analysis, central tendency, dispersion and multivariate analysis were included. The results showed that the saturated hydraulic conductivity (Ks) and electrical conductivity (EC) were highly variable. The other properties were moderately variable, depending on the coefficient of variation (10% < CV < 100%). The principal component analysis indicated that the first component was related to compaction processes in the soil (34%), the second included nutrients available to plants (24%), and the third (13%) was the movement of cations. The more susceptible to degradation properties included apparent density (Da) and porosity (η), which had normal distribution (P > 0.150). 19% of the evaluated sites had possible soil compaction, with high Da values (> 1.6 g cm−3) and low η (< 40%). The degradation from salinity was minimal, and only 2.2% of the samples had EC values greater than 2 dS m−1. 50% of the soils had organic matter levels (MO) greater than 2%. 85.5% had cation exchange capacity values (CEC) that exceeded 15 cmol (+) Kg−1, and 42.12% were in the pH range from 5.5 to 7.0, optimal conditions for crops. The results showed that soil compaction occurred in some agricultural crops; however, most than 80% of the soils studied had excellent physicochemical properties (MO, CEC, pH).

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Tecnologías agroambientales precursoras de materia orgánica del suelo en cultivos industriales del Valle del Cauca (Colombia)

Cited by 2 publications

References 0 publications

Evaluation of physicochemical properties in agricultural soils from Valle del Cauca-Colombia with an emphasis on degradation

Evaluation of physicochemical properties in agricultural soils from Valle del Cauca-Colombia with an emphasis on degradation

Evaluation of physicochemical properties in agricultural soils on the flat and piedmont areas of Valle del Cauca, Colombia with emphasis on degradation

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